[Home](./index.md) > [puppeteer](./puppeteer.md) > [Protocol](./puppeteer.protocol.md) > [Network](./puppeteer.protocol.network.md) > [ResourceTiming](./puppeteer.protocol.network.resourcetiming.md) > [workerFetchStart](./puppeteer.protocol.network.resourcetiming.workerfetchstart.md) ## Protocol.Network.ResourceTiming.workerFetchStart property Started fetch event. Signature: ```typescript workerFetchStart: number; ```